Petrographic analysis of bituminous coal and anthracite, Glossary of terms relating to the petrographic analysis of bituminous coal and anthracite— 8 стр.
Petrographic analysis of bituminous coal and anthracite, Glossary of terms relating to the petrographic analysis of bituminuous coal and anthracite— 10 стр.
Petrographic analysis of bituminous coal and anthracite, Glossary of terms relating to the petrographic analysis of bituminuous coal and anthracite— 10 стр.
